'Hey Arnold!' TV movie in the works at Nickelodeon

Nickelodeon is developing a new TV movie for the classic animated series "Hey Arnold!" TheWrap has learned.

"Hey Arnold!" followed the adventures of Arnold, a fourth grader with a football shaped head. He lived in a boarding house with his bizarre grandparents and would often go off on adventures with his friend Gerald and Helga, who secretly loved him.

The new TV movie will pick up where the series left off, and will also resolve the storyline of what happened to Arnold's parents.

See our 6-second freak out over Hey Arnold

The show originally aired on Nickelodeon from 1996-2004. A standalone movie was released in 2002. Craig Bartlett, Steve Viksten, and Joe Ansolabehere created the series.

Episodes of "Hey Arnold!" recently began airing on Nickelodeon's new late-night block of '90s programming called "The Splat." The programming block features other classic Nickelodeon shows like "Doug," "Rocko's Modern Life," and "Clarissa Explains It All."

See more 90s favorites in the gallery below!

10PHOTOS

Hey Arnold instagram posts

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'Hey Arnold!' TV movie in the works at Nickelodeon

Blow dry

Heat

Wave

Trike

Family

Night, Grandma!

Cleaned this one up cuz it cracks me up.

Love

Happy Monday! (Grandma thinks it's Halloween.)

I'm gonna say Stinky's growing alfalfa, because it would be funny to hear him say it.